We all know that drinking too much _____ our health, but some people don’t care.

We will throw a party to _____ our parents’ golden wedding.

It is usually warm in my hometown in March, but it _____ be rather cold sometimes.

If I were any younger, I would do ______ I’m interested in.

— Another cup of coffee?

— No, thanks. I think I’d better ______ for the airport immediately.

Because of the heavy snow, some distant Japanese villages are ______ from the rest of the country.

 That is the best way you thought of _______ into trouble.

He always tells ______ lies, to tell you ______ truth, I don’t believe what he said at all.

A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off. She told him that she would   21 the water in ten minutes.

Thirty minutes later, when the passenger’s ring for  22  sounded, the air hostess realized it at once. She was kept so  23  that she forget to deliver him the  24  . As a result, the passenger was  25  to take his medicine. She hurried over to him  26  a cup of water, but to her surprise he  27  it.

In the following hours on the  28  , each time the air hostess passed by the  29  , she would ask him with a  30  whether he needed help or not. But the passenger  31  paid attention to her words.

When he was going to get  32  the plane, the passenger asked the air hostess to  33  him the passenger’s booklet(意见簿). She was very 34  . She knew that he would write down  35  words, which might result in the loss of her job.  36  with a smile she handed it to him.

Off the plane, she  37  the booklet and cracked a smile,  38  the passenger put it, “On the flight, you asked me whether I needed help or not for twelve times  39  . How can I refuse your twelve sincere smiles?”

That’s  40  ! Who can refuse twelve sincere smiles from a person?   

It was graduation day at the university where I work and a beautiful day quite unlike the first graduation I attended as a young professor. On that cold day years ago, as we watched the students walking into the hall, one of my colleagues（同事）turned to me and said, “Graduation will be one of the happiest and one of the saddest time of your life.” At my request, he answered, “Because the students you have got to know have to leave.”

As years went by, my previous confusion about my colleague’s words no longer existed. When I came across naughty students, I had to rethink why I chose to be a teacher. It obviously isn’t the money. Once a former computer science student of mine called me, asking me if I wanted to have a change. He was working at Nintendo Corporation. His salary was higher than my present one, though I have more education and have worked for over 10 years. With my programming skills, he said he could get me hired, I thanked him, but refused his kind offer.

A few days before this graduation, while working on final grades, I found a note a student had slipped in with her homework. She thanked me for being her teacher and said the things she had learned in my class – not about math, but about life – would be things she would remember long after the math skills had faded away. As I finished reading, I remembered why I had become a teacher.

Now, on this sunny graduation day, as I again observed the sea of blue hats and gowns, I did so with a deeper sense of satisfaction – I will always be grateful that I am a teacher.

1.Hearing his colleague’s description of graduation for the first time, the author ______.

2.The computer science student called the author because he ______.

3.The underlined phrase blue hats and gowns refers to ______.

4.We can learn from the text that the author ______.